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Finding the Fourth Proportional to 335.06, 462.40 and 187.71

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Solution

The fourth proportional to 335.06, 462.40 and 187.71 is: 259.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    335.06 : 462.40 = 187.71 : x
  2. Step 2: Convert to fraction form
    335.06/462.40 = 187.71/x
  3. Step 3: Cross multiply
    335.06x = 462.40 × 187.71
  4. Step 4: Simplify right side
    335.06x = 86,794.90
  5. Step 5: Solve for x
    x = 86,794.90/335.06
  6. Step 6: Final answer
    x = 259.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.